@charset "UTF-8";
div {
  content: "小红马"; }

p {
  font: 10px/5px;
  width: 500px;
  height: 250px;
  margin: 1px; }

div {
  content: "xuejia";
  font-family: guoyi; }

#d1 {
  width: 100px;
  height: 100px;
  border: 2px solid #fff;
  color: #111;
  background: #222;
  border-color: #333;
  background: -webkit-linear-gradient(bottom, #111, #222);
  background: -o-linear-gradient(bottom, #111, #222);
  background: -ms-linear-gradient(bottom, #111, #222);
  background: -moz-linear-gradient(bottom, #111, #222); }

#d2 {
  color: #111;
  background: #222;
  border-color: #333; }

.parent, .child {
  color: red; }

.child {
  background: #aa1; }
